WO2001047201A3 - Method for transmitting data from an interrogating device to portable objects - Google Patents

Method for transmitting data from an interrogating device to portable objects Download PDF

Info

Publication number
WO2001047201A3
WO2001047201A3 PCT/FR2000/003589 FR0003589W WO0147201A3 WO 2001047201 A3 WO2001047201 A3 WO 2001047201A3 FR 0003589 W FR0003589 W FR 0003589W WO 0147201 A3 WO0147201 A3 WO 0147201A3
Authority
WO
WIPO (PCT)
Prior art keywords
transmitting data
portable objects
interrogating device
pulses
interrogating
Prior art date
Application number
PCT/FR2000/003589
Other languages
French (fr)
Other versions
WO2001047201A2 (en
Inventor
Elisabeth Crochon
Thierry Thomas
Des Noes Mathieu Bouvier
Original Assignee
Commissariat Energie Atomique
Elisabeth Crochon
Thierry Thomas
Des Noes Mathieu Bouvier
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commissariat Energie Atomique, Elisabeth Crochon, Thierry Thomas, Des Noes Mathieu Bouvier filed Critical Commissariat Energie Atomique
Priority to EP00993565A priority Critical patent/EP1181796B1/en
Priority to JP2001547811A priority patent/JP4672226B2/en
Priority to DE60023135T priority patent/DE60023135T2/en
Priority to US09/926,039 priority patent/US6954496B2/en
Publication of WO2001047201A2 publication Critical patent/WO2001047201A2/en
Publication of WO2001047201A3 publication Critical patent/WO2001047201A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4904—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using self-synchronising codes, e.g. split-phase codes

Abstract

The invention concerns a device whereby the transmission is carried out by amplitude modulation and by position pulse coding. A frame comprises a start-of-frame flag (SOF) consisting of two pulses of same polarity, patterns transmitting binary symbols and consisting of two pulses of opposite polarity and an end-of-frame flag (EOF) comprising only one single pulse. The invention is useful, in particular, for interrogating radiofrequency labels
PCT/FR2000/003589 1999-12-20 2000-12-19 Method for transmitting data from an interrogating device to portable objects WO2001047201A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP00993565A EP1181796B1 (en) 1999-12-20 2000-12-19 Method for transmitting data from an interrogating device to portable objects
JP2001547811A JP4672226B2 (en) 1999-12-20 2000-12-19 Information transmission method from interrogator system to portable terminal
DE60023135T DE60023135T2 (en) 1999-12-20 2000-12-19 METHOD FOR TRANSMITTING INFORMATION FROM A QUERY DEVICE TO PORTABLE OBJECTS
US09/926,039 US6954496B2 (en) 1999-12-20 2000-12-19 Method for transmitting data from an interrogating device to portable objects

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR99/16067 1999-12-20
FR9916067A FR2802688B1 (en) 1999-12-20 1999-12-20 METHOD FOR TRANSMITTING INFORMATION FROM AN INTERROGATING DEVICE TO PORTABLE OBJECTS

Publications (2)

Publication Number Publication Date
WO2001047201A2 WO2001047201A2 (en) 2001-06-28
WO2001047201A3 true WO2001047201A3 (en) 2001-12-27

Family

ID=9553479

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2000/003589 WO2001047201A2 (en) 1999-12-20 2000-12-19 Method for transmitting data from an interrogating device to portable objects

Country Status (7)

Country Link
US (1) US6954496B2 (en)
EP (1) EP1181796B1 (en)
JP (1) JP4672226B2 (en)
DE (1) DE60023135T2 (en)
ES (1) ES2249328T3 (en)
FR (1) FR2802688B1 (en)
WO (1) WO2001047201A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7082479B2 (en) * 2002-06-19 2006-07-25 Eastman Kodak Company System and method for maintaining synchronized data transfer using a plurality of different control words individually indicative of the same single event
US8543717B2 (en) * 2003-12-23 2013-09-24 Eastman Kodak Company Retaining channel synchronization through use of alternate control characters
US20080012688A1 (en) * 2006-07-06 2008-01-17 Ha Dong S Secure rfid based ultra-wideband time-hopped pulse-position modulation
FR2951596B1 (en) * 2009-10-19 2012-03-09 Commissariat Energie Atomique METHOD OF ENCODING DATA FROM CONTACTLESS COMMUNICATION FROM TRANSPONDER TO DRIVER BY LOAD MODULATION, AS A SET OF PATTERNS AND DEVICE FOR IMPLEMENTING SAID METHOD

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0681192A2 (en) * 1993-09-03 1995-11-08 Texas Instruments Deutschland Gmbh Transponders, interrogators, systems and methods for elimination of interrogators synchronization requirement
US5684871A (en) * 1995-05-02 1997-11-04 Apple Computer, Inc. Method and apparatus for multi-mode infrared data transmission
US5844942A (en) * 1997-02-27 1998-12-01 Northrop Grumman Corporation Pulse position modulation communications protocol

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941631B2 (en) * 1977-12-20 1984-10-08 沖電気工業株式会社 High-efficiency calligraphy and painting electronic transmission method
DE2850129A1 (en) * 1978-11-18 1980-06-04 Tekade Felten & Guilleaume CIRCUIT ARRANGEMENT FOR CONVERTING BINARY DIGITAL SIGNALS INTO PSEUDOTERNAERE ALTERNATING IMPULSES
JPS5964940A (en) * 1982-09-02 1984-04-13 ブリティシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニ Light communication system and converter therefor
JPH0773389B2 (en) * 1986-07-07 1995-08-02 三菱電機株式会社 Digital remote control transmission device
US4897854A (en) * 1989-02-24 1990-01-30 General Instrument Corporation Alternate pulse inversion encoding scheme for serial data transmission
JPH0556026A (en) * 1990-12-19 1993-03-05 Fujitsu Ltd Timing clock generating method
JP3693725B2 (en) * 1995-11-24 2005-09-07 株式会社日本自動車部品総合研究所 Automatic response system using transponder
JPH1174938A (en) * 1997-08-29 1999-03-16 Nippon Steel Corp Ask modulated wave communication device, data carrier and communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0681192A2 (en) * 1993-09-03 1995-11-08 Texas Instruments Deutschland Gmbh Transponders, interrogators, systems and methods for elimination of interrogators synchronization requirement
US5684871A (en) * 1995-05-02 1997-11-04 Apple Computer, Inc. Method and apparatus for multi-mode infrared data transmission
US5844942A (en) * 1997-02-27 1998-12-01 Northrop Grumman Corporation Pulse position modulation communications protocol

Also Published As

Publication number Publication date
FR2802688A1 (en) 2001-06-22
WO2001047201A2 (en) 2001-06-28
EP1181796B1 (en) 2005-10-12
DE60023135D1 (en) 2006-02-23
US20030086506A1 (en) 2003-05-08
EP1181796A2 (en) 2002-02-27
JP2003518824A (en) 2003-06-10
DE60023135T2 (en) 2006-06-22
JP4672226B2 (en) 2011-04-20
US6954496B2 (en) 2005-10-11
FR2802688B1 (en) 2002-02-08
ES2249328T3 (en) 2006-04-01

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